he's only 40 years old, and he's got a lot more energy than i have. and so, on sundays, we go up to mt. rubideaux, but of course, he's way, way ahead of me. mirich: their body adjusts to that higher activity level, cardiovascular fitness, strength, flexibility, and then they'll find that, "boy, i have more energy. i am less stiff when i need to go out and mow the lawn or go shopping or to visit the grandkids. i'm sleeping better. i'm requiring less blood pressure medications. my diabetes is better controlled. i'm now able to get off my insulin and go on to an oral pill to control my diabetes." so the health benefits of a moderate exercise program is enormous even in the older population. olsen: they're very motivated. they're easier to work with, i think, in some respects because they've reached a point in their life where they know that things don't happen quickly all the time, and they're very disciplined, usually. the elements of becominphysicly f apply to all ages: develop an exercise program you like; make sure it fits your physical ability; perf